1 2#------------------------------------------------------------------------------ 3# $File: riff,v 1.26 2014/03/06 18:55:09 christos Exp $ 4# riff: file(1) magic for RIFF format 5# See 6# 7# http://www.seanet.com/users/matts/riffmci/riffmci.htm 8# 9 10# audio format tag. Assume limits: max 1024 bit, 128 channels, 1 MHz 110 name riff-wave 12>0 leshort 1 \b, Microsoft PCM 13>>14 leshort >0 14>>>14 leshort <1024 \b, %d bit 15>0 leshort 2 \b, Microsoft ADPCM 16>0 leshort 6 \b, ITU G.711 A-law 17>0 leshort 7 \b, ITU G.711 mu-law 18>0 leshort 8 \b, Microsoft DTS 19>0 leshort 17 \b, IMA ADPCM 20>0 leshort 20 \b, ITU G.723 ADPCM (Yamaha) 21>0 leshort 49 \b, GSM 6.10 22>0 leshort 64 \b, ITU G.721 ADPCM 23>0 leshort 80 \b, MPEG 24>0 leshort 85 \b, MPEG Layer 3 25>0 leshort 0x2001 \b, DTS 26>2 leshort =1 \b, mono 27>2 leshort =2 \b, stereo 28>2 leshort >2 29>>2 leshort <128 \b, %d channels 30>4 lelong >0 31>>4 lelong <1000000 %d Hz 32 33# try to find "fmt " 340 name riff-walk 35>0 string fmt\x20 36>>4 lelong <0x80 37>>>8 use riff-wave 38>0 string LIST 39>>&(4.l+4) use riff-walk 40>0 string DISP 41>>&(4.l+4) use riff-walk 42>0 string bext 43>>&(4.l+4) use riff-walk 44>0 string Fake 45>>&(4.l+4) use riff-walk 46>0 string fact 47>>&(4.l+4) use riff-walk 48 49# AVI section extended by Patrik Radman <patrik+file-magic@iki.fi> 50# 510 string RIFF RIFF (little-endian) data 52# RIFF Palette format 53>8 string PAL \b, palette 54>>16 leshort x \b, version %d 55>>18 leshort x \b, %d entries 56# RIFF Device Independent Bitmap format 57>8 string RDIB \b, device-independent bitmap 58>>16 string BM 59>>>30 leshort 12 \b, OS/2 1.x format 60>>>>34 leshort x \b, %d x 61>>>>36 leshort x %d 62>>>30 leshort 64 \b, OS/2 2.x format 63>>>>34 leshort x \b, %d x 64>>>>36 leshort x %d 65>>>30 leshort 40 \b, Windows 3.x format 66>>>>34 lelong x \b, %d x 67>>>>38 lelong x %d x 68>>>>44 leshort x %d 69# RIFF MIDI format 70>8 string RMID \b, MIDI 71# RIFF Multimedia Movie File format 72>8 string RMMP \b, multimedia movie 73# RIFF wrapper for MP3 74>8 string RMP3 \b, MPEG Layer 3 audio 75# Microsoft WAVE format (*.wav) 76>8 string WAVE \b, WAVE audio 77!:mime audio/x-wav 78>>12 string >\0 79>>>12 use riff-walk 80# Corel Draw Picture 81>8 string CDRA \b, Corel Draw Picture 82!:mime image/x-coreldraw 83>8 string CDR6 \b, Corel Draw Picture, version 6 84!:mime image/x-coreldraw 85>8 string NUNDROOT \b, Steinberg CuBase 86# AVI == Audio Video Interleave 87>8 string AVI\040 \b, AVI 88!:mime video/x-msvideo 89>>12 string LIST 90>>>20 string hdrlavih 91>>>>&36 lelong x \b, %lu x 92>>>>&40 lelong x %lu, 93>>>>&4 lelong >1000000 <1 fps, 94>>>>&4 lelong 1000000 1.00 fps, 95>>>>&4 lelong 500000 2.00 fps, 96>>>>&4 lelong 333333 3.00 fps, 97>>>>&4 lelong 250000 4.00 fps, 98>>>>&4 lelong 200000 5.00 fps, 99>>>>&4 lelong 166667 6.00 fps, 100>>>>&4 lelong 142857 7.00 fps, 101>>>>&4 lelong 125000 8.00 fps, 102>>>>&4 lelong 111111 9.00 fps, 103>>>>&4 lelong 100000 10.00 fps, 104# ]9.9,10.1[ 105>>>>&4 lelong <101010 106>>>>>&-4 lelong >99010 107>>>>>>&-4 lelong !100000 ~10 fps, 108>>>>&4 lelong 83333 12.00 fps, 109# ]11.9,12.1[ 110>>>>&4 lelong <84034 111>>>>>&-4 lelong >82645 112>>>>>>&-4 lelong !83333 ~12 fps, 113>>>>&4 lelong 66667 15.00 fps, 114# ]14.9,15.1[ 115>>>>&4 lelong <67114 116>>>>>&-4 lelong >66225 117>>>>>>&-4 lelong !66667 ~15 fps, 118>>>>&4 lelong 50000 20.00 fps, 119>>>>&4 lelong 41708 23.98 fps, 120>>>>&4 lelong 41667 24.00 fps, 121# ]23.9,24.1[ 122>>>>&4 lelong <41841 123>>>>>&-4 lelong >41494 124>>>>>>&-4 lelong !41708 125>>>>>>>&-4 lelong !41667 ~24 fps, 126>>>>&4 lelong 40000 25.00 fps, 127# ]24.9,25.1[ 128>>>>&4 lelong <40161 129>>>>>&-4 lelong >39841 130>>>>>>&-4 lelong !40000 ~25 fps, 131>>>>&4 lelong 33367 29.97 fps, 132>>>>&4 lelong 33333 30.00 fps, 133# ]29.9,30.1[ 134>>>>&4 lelong <33445 135>>>>>&-4 lelong >33223 136>>>>>>&-4 lelong !33367 137>>>>>>>&-4 lelong !33333 ~30 fps, 138>>>>&4 lelong <32224 >30 fps, 139##>>>>&4 lelong x (%lu) 140##>>>>&20 lelong x %lu frames, 141# Note: The tests below assume that the AVI has 1 or 2 streams, 142# "vids" optionally followed by "auds". 143# (Should cover 99.9% of all AVIs.) 144# assuming avih length = 56 145>>>88 string LIST 146>>>>96 string strlstrh 147>>>>>108 string vids video: 148>>>>>>&0 lelong 0 uncompressed 149# skip past vids strh 150>>>>>>(104.l+108) string strf 151>>>>>>>(104.l+132) lelong 1 RLE 8bpp 152>>>>>>>(104.l+132) string/c cvid Cinepak 153>>>>>>>(104.l+132) string/c i263 Intel I.263 154>>>>>>>(104.l+132) string/c iv32 Indeo 3.2 155>>>>>>>(104.l+132) string/c iv41 Indeo 4.1 156>>>>>>>(104.l+132) string/c iv50 Indeo 5.0 157>>>>>>>(104.l+132) string/c mp42 Microsoft MPEG-4 v2 158>>>>>>>(104.l+132) string/c mp43 Microsoft MPEG-4 v3 159>>>>>>>(104.l+132) string/c fmp4 FFMpeg MPEG-4 160>>>>>>>(104.l+132) string/c mjpg Motion JPEG 161>>>>>>>(104.l+132) string/c div3 DivX 3 162>>>>>>>>112 string/c div3 Low-Motion 163>>>>>>>>112 string/c div4 Fast-Motion 164>>>>>>>(104.l+132) string/c divx DivX 4 165>>>>>>>(104.l+132) string/c dx50 DivX 5 166>>>>>>>(104.l+132) string/c xvid XviD 167>>>>>>>(104.l+132) string/c h264 H.264 168>>>>>>>(104.l+132) string/c wmv3 Windows Media Video 9 169>>>>>>>(104.l+132) string/c h264 X.264 or H.264 170>>>>>>>(104.l+132) lelong 0 171##>>>>>>>(104.l+132) string x (%.4s) 172# skip past first (video) LIST 173>>>>(92.l+96) string LIST 174>>>>>(92.l+104) string strlstrh 175>>>>>>(92.l+116) string auds \b, audio: 176# auds strh length = 56: 177>>>>>>>(92.l+172) string strf 178>>>>>>>>(92.l+180) leshort 0x0001 uncompressed PCM 179>>>>>>>>(92.l+180) leshort 0x0002 ADPCM 180>>>>>>>>(92.l+180) leshort 0x0006 aLaw 181>>>>>>>>(92.l+180) leshort 0x0007 uLaw 182>>>>>>>>(92.l+180) leshort 0x0050 MPEG-1 Layer 1 or 2 183>>>>>>>>(92.l+180) leshort 0x0055 MPEG-1 Layer 3 184>>>>>>>>(92.l+180) leshort 0x2000 Dolby AC3 185>>>>>>>>(92.l+180) leshort 0x0161 DivX 186##>>>>>>>>(92.l+180) leshort x (0x%.4x) 187>>>>>>>>(92.l+182) leshort 1 (mono, 188>>>>>>>>(92.l+182) leshort 2 (stereo, 189>>>>>>>>(92.l+182) leshort >2 (%d channels, 190>>>>>>>>(92.l+184) lelong x %d Hz) 191# auds strh length = 64: 192>>>>>>>(92.l+180) string strf 193>>>>>>>>(92.l+188) leshort 0x0001 uncompressed PCM 194>>>>>>>>(92.l+188) leshort 0x0002 ADPCM 195>>>>>>>>(92.l+188) leshort 0x0055 MPEG-1 Layer 3 196>>>>>>>>(92.l+188) leshort 0x2000 Dolby AC3 197>>>>>>>>(92.l+188) leshort 0x0161 DivX 198##>>>>>>>>(92.l+188) leshort x (0x%.4x) 199>>>>>>>>(92.l+190) leshort 1 (mono, 200>>>>>>>>(92.l+190) leshort 2 (stereo, 201>>>>>>>>(92.l+190) leshort >2 (%d channels, 202>>>>>>>>(92.l+192) lelong x %d Hz) 203# Animated Cursor format 204>8 string ACON \b, animated cursor 205# SoundFont 2 <mpruett@sgi.com> 206>8 string sfbk SoundFont/Bank 207# MPEG-1 wrapped in a RIFF, apparently 208>8 string CDXA \b, wrapped MPEG-1 (CDXA) 209>8 string 4XMV \b, 4X Movie file 210# AMV-type AVI file: http://wiki.multimedia.cx/index.php?title=AMV 211>8 string AMV\040 \b, AMV 212 213# 214# XXX - some of the below may only appear in little-endian form. 215# 216# Also "MV93" appears to be for one form of Macromedia Director 217# files, and "GDMF" appears to be another multimedia format. 218# 2190 string RIFX RIFF (big-endian) data 220# RIFF Palette format 221>8 string PAL \b, palette 222>>16 beshort x \b, version %d 223>>18 beshort x \b, %d entries 224# RIFF Device Independent Bitmap format 225>8 string RDIB \b, device-independent bitmap 226>>16 string BM 227>>>30 beshort 12 \b, OS/2 1.x format 228>>>>34 beshort x \b, %d x 229>>>>36 beshort x %d 230>>>30 beshort 64 \b, OS/2 2.x format 231>>>>34 beshort x \b, %d x 232>>>>36 beshort x %d 233>>>30 beshort 40 \b, Windows 3.x format 234>>>>34 belong x \b, %d x 235>>>>38 belong x %d x 236>>>>44 beshort x %d 237# RIFF MIDI format 238>8 string RMID \b, MIDI 239# RIFF Multimedia Movie File format 240>8 string RMMP \b, multimedia movie 241# Microsoft WAVE format (*.wav) 242>8 string WAVE \b, WAVE audio 243>>20 leshort 1 \b, Microsoft PCM 244>>>34 leshort >0 \b, %d bit 245>>22 beshort =1 \b, mono 246>>22 beshort =2 \b, stereo 247>>22 beshort >2 \b, %d channels 248>>24 belong >0 %d Hz 249# Corel Draw Picture 250>8 string CDRA \b, Corel Draw Picture 251>8 string CDR6 \b, Corel Draw Picture, version 6 252# AVI == Audio Video Interleave 253>8 string AVI\040 \b, AVI 254# Animated Cursor format 255>8 string ACON \b, animated cursor 256# Notation Interchange File Format (big-endian only) 257>8 string NIFF \b, Notation Interchange File Format 258# SoundFont 2 <mpruett@sgi.com> 259>8 string sfbk SoundFont/Bank 260 261#------------------------------------------------------------------------------ 262# Sony Wave64 263# see http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf 264# 128 bit RIFF-GUID { 66666972-912E-11CF-A5D6-28DB04C10000 } in little-endian 2650 string riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00 Sony Wave64 RIFF data 266# 128 bit + total file size (64 bits) so 24 bytes 267# then WAVE-GUID { 65766177-ACF3-11D3-8CD1-00C04F8EDB8A } 268>24 string wave\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b, WAVE 64 audio 269!:mime audio/x-w64 270# FMT-GUID { 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A } 271>>40 search/256 fmt\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b 272>>>&10 leshort =1 \b, mono 273>>>&10 leshort =2 \b, stereo 274>>>&10 leshort >2 \b, %d channels 275>>>&12 lelong >0 %d Hz 276 277#------------------------------------------------------------------------------ 278# MBWF/RF64 279# see EBU TECH 3306 http://tech.ebu.ch/docs/tech/tech3306-2009.pdf 2800 string RF64\xff\xff\xff\xffWAVEds64 MBWF/RF64 audio 281!:mime audio/x-wav 282>40 search/256 fmt\x20 \b 283>>&6 leshort =1 \b, mono 284>>&6 leshort =2 \b, stereo 285>>&6 leshort >2 \b, %d channels 286>>&8 lelong >0 %d Hz 287 288